Than good book that help you built your own powers and it add extra option to power already given in M&M 2.It explaime how power array worked and how to make your own.

God I love Mutants and Masterminds. This book is the KEY for making, quite possibly, any super character you could ever want. Similar to Guardians of Order's Silver Age Sentinels, this allows you to build powers based on effects, but UNLIKE Silver Age Sentinels (thankfully) the effects are carefully balanced. The power examples are also a great help. Really, with the main book, the Mastermind's Manual, and Ultimate Power, you may never need another superhero roleplaying game again.<br><br> <b>LIKED</b>: Quite possibly everything.<br><br><b>DISLIKED</b>: Not exactly printer friendly. A color-light version would have been nice.<br><br><b>QUALITY</b>: Excellent<br><br><b>VALUE</b>: Very Satisfied<br>